Friction in Pipe Lines Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-FML-10024
Jlab Export is a leading Friction in Pipe Lines Apparatus Manufacturer,and suppliers in India
Friction in Pipe Lines Apparatus (code EL-FML-10024) is a water re-circulating bench with two GI pipes, ½" and 1" in diameter, connected in parallel over a 1 m test length, for measuring head loss due to friction and the Darcy–Weisbach friction factor. A control valve on each pipe lets one be tested at a time, with a differential manometer across its pressure tappings. JLab fabricates this two-pipe friction bench at Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Test pipes | 2 nos., GI, ½" and 1" diameter, in parallel |
| Test length | 1 m |
| Pressure loss | Differential manometer across tappings on each pipe |
| Valves | Control valve on each pipe; flow control and by-pass valves |
| Flow measurement | Measuring tank with piezometer, 25 litres; mechanical or electronic stopwatch |
| Sump tank | Stainless steel, 50 litres |
| Water circulation | FHP centrifugal pump |
| Utilities | Single phase, 220 V AC, 0.5 kW; water supply and drain |
| Quality check | Each pipe friction bench is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Product code | EL-FML-10024 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Calculating the Friction Factor
The Darcy–Weisbach equation links friction head loss to flow: hf = f L v² / 2gD, where L is the 1 m test length, D the pipe diameter and v the mean velocity, found by dividing the measured discharge by the bore area. Rearranged, f = 2gD hf / (L v²), so each flow setting gives one value of f. Some textbooks write the same law as hf = 4f′ L v² / 2gD, where f′ is the Fanning factor, one quarter of the Darcy value.
Why the Bench Has Two Pipe Sizes
At the same discharge the ½" pipe carries a much higher velocity than the 1" pipe, and since hf rises with v² and falls with D, it loses far more head per metre. Plotting f against the Reynolds number vD/ν for both pipes shows how the friction factor of galvanised pipe changes as the flow becomes more turbulent.
Pipe Loss and Energy Apparatus
- Study of Pipe Fitting — minor losses in a bend, elbow, valves and sudden area changes.
- Pipe Friction Apparatus — three pipes on a common manifold with tappings 1 m apart.
- Bernoullis Theorem Apparatus — the ideal energy equation, before friction losses are added.
Other pipe-flow benches appear in Fluid Mechanics Lab, under Fluid Mechanics and Hydraulics Lab Equipment.
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Last updated: 30 October 2026
